Improvement in globe steam-valves



UNITED ISTATES JAMES O. ALTIGK, OF DAYTON, OHIO.

IMPROVEMENT IN GLOBE STbEAM-VALVES.

Specification forming part of Letters Patent No. 58,012, dated September 18, 1866.

To all 'whom it may concern: Y

Be it known that I, JAMEs O. AL'rIoK, of Dayton, in the county of Montgomery, in the State of Ohio, have invented a new and 1mproved Globe-Valve; and I do hereby declare that the following is a i'ull and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon.

lhe nature of my invention consists in constructing' a globe-valve by working the valve in contact with the seat, and the mode of packing the valve stem to make it steamtight, and to hold the valve against its seat.

To enable others skilled in the art to make and use my invention, I will proceed to describe its construction and operation.

' Figure 1 represents a longitudinal section of. the globe-valve. Fig. 2 represents both the surfaces of the Valve and seat.

A represents the body, and C a nut screwed into it, having a packing to make it tight at the shoulder; B, valve bearing against the part F for its seat, the two surfaces being identical in form, and when the valve is fully opened the orifices e e of the valve and seat correspond in position, and is closed by rotating the valve until the orifices shall correspond with the faces of each other. Thelarge part of the valve-stem below the shoulder extends into the nut O, and the less part is surrounded by the packing-nut D.

Two washers, o o, are used, the packing` being placed between them, and as the packing u is being compressed to iill the space the downward action against the shoulder keeps the valve firmly against its seat. To the upper end ot' the valve-stem is attached the wheel E, by which the valve is moved.

That I claim as my invention, and desire to secure by Letters Patent, is-

lhe arrangement of the shouldered valvestem of the valve B with reference to the packing-nut D, nut C, and valve-seat F, for the double purpose of packing` the stem and holding the valve against its seat, in the man- 11er substantially as described.

JAMES o. ALTIGK.

Witnesses:

THos. D. MITCHELL, W M. MITCHELL. 

